Mbuf

l2_len, l3_len, l4_len 등을 사용하는 라이브러리가 존재함 reassembly Tx checksum offload Reassembly rte_ipv6_frag_reassemble_packet(), rte_ipv4_frag_reassemble_packet() Incoming mbuf should have its l2_len and l3_len fields setup correctly. L4 checksum HW offloading To use hardware L4 checksum offload, the user needs to fill l2_len and l3_len in mbuf set the flags PKT_TX_TCP_CKSUM, PKT_TX_SCTP_CKSUM or PKT_TX_UDP_CKSUM set the flag PKT_TX_IPV4 or PKT_TX_IPV6 calculate the pseudo header checksum and set it in the L4 header (only for TCP or UDP).